Question

solve the equation x-2y=0 and 3x+4y=20 by using cross multiplication method

Answer 1

Answer:

x-2y=0 equ1

3x+4y=20 equ 20

equ1×2

2x-4y=0 equ 3

equ2+3

3x+4y=20 +2x-4y=0

5x=20

x=4 answer